Carbon-holder.



No. 702,5:4. Patented lune l7, I902.

s. B. WHINERY.

CARBON HOLDER. (Application filed Mar. Is, 1902.

(No Model.) I

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SAMUEL BRENT WHINERY, OF PITTSBURG, PENNSYLVANIA, ASSIGNOR TO THE PITTSBURG BLUE PRINT COMPANY, A CORPORATION OF PENNSYLVANIA.

CARBON-HOLDER.

SPECIFICATION forming part of Letters Patent No. 702,514, dated June 17, 1902.

Application filed March 18, 1902. Serial No. 98,768. (No model.)

arc-lamps; and its object is to provide a lower-' carbon holder adapted to readily adjust the lower carbon in proper alinement with the upper one.

In the drawings, 1 and 2 represent the upper and lower carbons, respectively.

3 is the carrier for the lower-carbon holder'- 4, which is a tube having the annular flange 5. The holder is seated in the verticalbore 6 in the carrier 3, the flange 5 resting on the top of the carrier. central at the top and eccentric at the bottom.

.A set-screw 8 in the wall of the tube'serves to clamp the carbon. The wall of the tube on the side where the set-screw is is not reduced, but the remaining portions thereof are reduced gradually downward, so that the carbon can be adjusted laterally relatively to the set-screw.

The lower carbon when placed in the flared bore 6 is adjusted so as to come in contact with the center of the upper carbon by meansv of the set-screw. If the carbon burns unevenly, so that thepoi'nt of contact would not be in the centerfof the lamp or in the proper position for the best results, the holder is turned about its vertical axis to such position.

The bore 6 of the-tube is.

Having described my invention, what I claim is- 1. In arc-lamps, a holdenfor one of the carbons having rotation about a vertical axis which includes the prolongation of the axis of the other carbon,the rotation of the holder producing lateral movement of the first carbon. 2; In arc-lamps, an axially-rotatable carbonholder having a carbonreceiving opening which includes the axis of rotation of the holder,-theirotation.of the latter producing lateral movement of the carbon.

ing, a tubular carbon-holder rotatable in the opening, and means for holding the carbon inclined in the opening, the rotation of the holder producing lateral movement of the carbon.

,4. In arc-lamps, a rotatable carbon-holder adapted to hold a carbon inclined, whereby the rotation of the holder produces lateral movement of the carbon.

5. In arc-lamps, a carbon-holder rotatable about a fixed axis and having a bore central at one end and eccentric at the other, and means for holding the carbon in the bore.

. l 6. In arc-lamps, a holder having a bore to receive a carbon, means for securing the carbon in the holder, the bore being flared so as to permit the adjustment of the carbon in a plane at an angle to the plane that includes the carbon and the said securing means.

Signed at Pittsburg this 15th day of March, 1902.

F. N. BARBER," L. D. IAMS. 7

' :3. In arc-lamps, a carrier having an open- 

